MIKROENKAPSULASI DARI KITOSAN TERMODIFIKASI SAMBUNG SILANG DAN UJI ADSORPSIVITAS ZAT WARNA REMAZOL YELLOW FG 6
Penulis Utama
:
DIAN ENDAH KUSUMA ASTUTI
NIM / NIP
:
M0302018
×Synthesis of adsorbent by crosslink and microencapsulation modification
produce modified chitosan CTS, PEI-EPI-EGDE-CTS, and microcapsules PSF-
PEI-EPI-EGDE-CTS has been done. The product is used to adsorb Remazol
Yellow FG 6 dye.
Chitosan modification had done by making CTS, then crosslinking and
microencapsulation. Made of CTS had done by dropped the chitosan solution into
NaOH solution (gelation medium). Crosslinked had done between CTS with the
crosslinker agents, such as : EGDE (Ethylene Glycol Diglysidyl Ether), EPI(
Epichlorohidrine), dan PEI (Polyethyleneimine). Coating the modified chitosan
with polysulphone by emulsion phase inversion method prepared to produced the
higher stability adsorbent. The forming of crosslink bond and polysulphone
microcapsules could be analized by FTIR Spectroscopy. Adsorptivity test had
done by compare the ability of CTS, PEI-EPI-EGDE-CTS and PSF-PEI-EPI-
EGDE-CTS in the adsorption of Remazol Yellow FG 6 dye at pH 11,
consentration 15 ppm, and with variation of contact times.
Modified chitosan with crosslinking (PEI-EPI-EGDE-CTS) could adsorb
the Remazol Yellow FG 6 dye 3,99 time better than unmodified chitosan (CTS).
While microcapsules containing modified chitosan (PSF-PEI-EPI-EGDE-CTS)
could adsorb the Remazol Yellow FG 6 dye 4,00 time better than unmodified
chitosan(CTS). Analized of Remazol Yellow FG 6 dye adsorptivity had done use
UV-Vis spectrophotometer. Though the ability almost same with crosslinked
chitosan, microcapsules containing modified chitosan have shorter contact time
and more stability than crosslinked chitosan. It shown that modification chitosan
with crosslink and microencapsulation can improve it’s adsorptivity and stability.
Key words : chitosan; crosslink; microencapsulation; adsorption
×
Penulis Utama
:
DIAN ENDAH KUSUMA ASTUTI
Penulis Tambahan
:
1. DIAN ENDAH KUSUMA ASTUTI
NIM / NIP
:
M0302018
Tahun
:
2008
Judul
:
MIKROENKAPSULASI DARI KITOSAN TERMODIFIKASI SAMBUNG SILANG DAN UJI ADSORPSIVITAS ZAT WARNA REMAZOL YELLOW FG 6